Virtual reality cell phone

ABSTRACT

A virtual reality cell phone includes: a main body including a display; an ocular plate configured to maintain a variable distance from the rear surface of the main body; and a screen and distance adjustment member interposed between the main body and the ocular plate, and configured to move the ocular plate between a retracted state in which the ocular plate comes into close contact with the main body and an extended state in which the ocular plate maintains a predetermined distance from the main body. The screen and distance adjustment member includes a plurality of screen boxes configured to slide backward and be fixed while being laid over each other.

TECHNICAL FIELD

The present invention relates to a virtual reality cell phone, and morespecifically to a cell phone by which a module configured to enablevirtual reality to be experienced is provided in an integrated form.

BACKGROUND ART

Virtual reality is a human-computer interface that artificially createsa specific environment or situation and enables a human, who is usingvirtual reality, to feel as if he or she were interacting with an actualsurrounding situation or an actual environment. The term virtual realityis used interchangeably with the terms artificial reality, cyberspace,virtual worlds, virtual environment, synthetic environment, andartificial environment.

The purpose of use of virtual reality is to enable a human to view andmanipulate an environment that is difficult to experience in an everydaysituation without directly experiencing it as if he or she were presentin the environment. Application fields of virtual reality includeeducation, remote manipulation, remote satellite surface exploration,exploration data analysis, and scientific visualization.

Recently, as smartphones have become popularized, virtual reality hasattracted attention again. Representative examples of virtual realityinclude Gear VR, which was manufactured by Samsung in association withOculus, LG's “G3 VR,” and Google's Cardboard. These products caninteract with smartphones to thus enable virtual reality to beexperienced, and the prices thereof are cheaper than those of existingVR devices.

DISCLOSURE

The present invention provides a cell phone in which a virtual realityfunction is included.

The present invention provides a cell phone that does not require aseparate device to be carried and that can immediately implement avirtual reality (VR) function at a desired time and a desired location.

According to an exemplary embodiment of the present invention, there isprovided a virtual reality cell phone including: a main body including amain display on the front surface thereof and a virtual reality displayon the rear surface thereof; an ocular plate configured to maintain avariable distance from the rear surface of the main body; and a screenand distance adjustment member interposed between the main body and theocular plate, and configured to move the ocular plate between aretracted state in which the ocular plate comes into close contact withthe main body and an extended state in which the ocular plate maintainsa predetermined distance from the main body; wherein the screen anddistance adjustment member includes a plurality of screen boxesconfigured to slide backward and be fixed while being laid over eachother.

According to another embodiment of the present invention, there isprovided a virtual reality cell phone including: a main body including adisplay on the front surface thereof; a main frame configured toaccommodate the main body in an invertible manner; an ocular plateconfigured to maintain a variable distance from the rear surface of themain frame; and a screen and distance adjustment member interposedbetween the main frame and the ocular plate, and configured to move theocular plate between in a retracted state in which the ocular platecomes into close contact with the main frame and an extended state inwhich the ocular plate maintains a predetermined distance from the mainframe; wherein when the ocular plate is in the extended state, a virtualreality function can be implemented by orienting the display of theinverted main body backward.

The virtual reality cell phone according to the present invention isconfigured such that a common cell phone and a virtual reality moduleare integrated with each other and are coupled to each other in aportable structure, so that the virtual reality cell phone has noinferiority as a common cell phone and can implement a virtual realityfunction regardless of location and time.

Although the utilization of virtual reality is increased as the numberof functions that can be implemented by a virtual reality functionincreases, it does not satisfy such needs if it is necessary to carry aseparate auxiliary device as in the conventional technology.

Accordingly, a structure in which the ocular plate can be maintained ata variable distance from the cell phone may be formed by using thescreen and distance adjustment member. The screen and distanceadjustment member may include a plurality of screen boxes configured toslide backward and be fixed while being laid over each other and, thus,may also implement the light blocking screen function of preventingexternal light from entering.

Furthermore, since the main body is mounted inside the main frame in aninvertible manner, the main body may be normally used for a generalpurpose, and then the main body may be inverted and directed backward inorder to perform a virtual reality function. For reference, in thepresent specification, the main frame does not need to accommodate allthe side surfaces of the main body, and may be provided in a structurein which the main frame accommodates three surfaces or only two surfacesadjacent to a rotating axis.

The virtual reality function using the virtual reality display and theocular plate may be implemented using various methods. For example,although a virtual reality display may be divided into left and rightparts and a three-dimensional effect may be implemented using a pair ofocular lenses, as in the conventional cardboard, a polarizing glassesmethod in which polarizing lenses are mounted on an ocular plate, ashutter glasses method in which left and right ocular lenses are openedand closed in an ocular plate at time intervals, etc. may be alsoapplied to the present invention. Additionally, various types ofcombinations of a display and lenses for the implementation of virtualreality or three-dimensional display may be implemented.

The ocular plate needs to maintain a retracted state in which the ocularplate comes into close contact with the main body while a virtualreality function is not used, and needs to maintain an extended state inwhich the ocular plate is spaced apart from the main body by apredetermined distance while a virtual reality function is used. Forthis purpose, the ocular plate needs to form a variable distance withoutbeing fastened to the main body. For this purpose, the mutual frictionand fastening force of screen boxes or a bellows method are applied tothe screen and distance adjustment member, or a link structure isapplied to the distance adjustment member, thereby moving an ocularplate between the retracted state and the extended state.

For example, the screen and distance adjustment member may beimplemented using a plurality of screen boxes. The extended statebetween the display of the inverted main body and the ocular plate canbe maintained using the mutual friction and fastening force of thescreen boxes, and external light can be blocked. Alternatively, thescreen and distance adjustment member may separately include: a distanceadjustment member interposed between the main frame and the ocular plateand configured to move the ocular plate between the retracted state andthe extended state; and a light blocking screen interposed between themain frame and the ocular plate and configured to prevent external lightfrom entering in the extended state of the ocular plate.

Furthermore, the ocular plate needs to form a variable distance in orderto enable fine adjustment. The reason for this is that adjustment isrequired because humans differ in biological characteristics, such asvisual acuity, the distance between the eyes, the shape of the eyes,etc. For this purpose, although a method of moving lenses in afront-back direction may be used, it may be possible to construct ascreen and distance adjustment member in various manners and to move theocular plate between the retracted state and the extended state.

Furthermore, the distance adjustment member may be provided so that finedistance adjustment can be performed when necessary and the angle of theocular display and the misalignment of the display with a vertical axiscan be also adjusted independently.

The light blocking screen is intended to prevent external light fromentering in the extended state of the ocular plate. Although both endsof the screen may be fastened to the main body and the ocular plate,respectively, the screen may be fastened to any one side and may be thenfastened to the other side additionally in the extended state.

The material of the light blocking screen may be also selected fromamong various materials. For example, a fiber material having excellentelasticity may be used. The light blocking screen may be provided in abellows shape.

When the screen and distance adjustment member is implemented usingscreen boxes, the screen boxes may be each formed in a single-wallstructure, or may be each provided in a double-wall structure in orderto provide a firm support structure and a reduction in weight. In otherwords, in order to implement the double-wall structure, each of thescreen boxes may include an inner wall and an outer wall, and a minimumspace may be formed between the inner and outer walls.

Furthermore, in order to deal with heat or electromagnetic wavesgenerated from the virtual reality display, vents may be formed in thescreen boxes. However, light may enter directly from the outside throughthe vents. Accordingly, in each of the screen boxes having a double-wallstructure, a first vent is formed in the inner wall thereof, a secondvent is formed in the outer wall thereof, and the first and second ventsare formed not to overlap each other, i.e., in a non-overlap manner,thereby preventing light from entering directly from the outside.

Since it is sufficient if the screen and distance adjustment membereffectively blocks external light in order to increase an immersionlevel, the screen and distance adjustment member may completely block aspace between the main body and the ocular plate, or may partially openthe space as long as its intrinsic function is not damaged.

Furthermore, in order to implement a virtual reality function in a morerealistic fashion, fastening members configured to fasten the cell phonein its extended state to the face of a user may be further included. Thefastening members may be provided in various forms, such as the earloopsof a common mask, the temples of glasses, a helmet mount, an elasticityband, etc.

The virtual reality cell phone according to the present invention mayfurther include a rear cover configured to selectively open and closethe rear surfaces of the ocular plate and the main body in the retractedstate of the ocular plate. The rear cover is used for the purpose ofprotecting the ocular plate, and may further include a smell generationunit configured to generate a specific smell in connection with thecontent of virtual reality or a wind generation unit configured togenerate a wind in connection with the content of virtual reality.

The virtual reality cell phone according to the present invention isconfigured such that a common cell phone and a virtual reality moduleare integrated with each other and are coupled to each other in aportable structure, so that the virtual reality cell phone has noinferiority as a common cell phone and can implement a virtual realityfunction regardless of location and time. The number of functions thatcan be implemented by a virtual reality function can increase, and alsoit is not necessary to carry a separate auxiliary device, unlike in theconventional technology, thereby improving the convenience of a user.

Furthermore, the main body is mounted inside the main frame in aninvertible manner, so that a single display can be used both as ageneral monitor and as a virtual reality monitor.

Moreover, a structure in which the ocular plate is maintained at avariable distance from the cell phone can be constructed by the screenand distance adjustment member and also the light blocking screenfunction of preventing external light from entering can be implementedby the same structure, so that an overall structure can be simplifiedand both high-quality sliding movement and firmness can be acquired.

These features can be made to produce further improved effects byforming the screen boxes in double-wall structures, and the convenienceof a user can be further increased by forming the vents in a non-overlapmanner and also providing the lightweight structures.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 is a perspective view of a virtual reality cell phone accordingto an embodiment of the present invention;

FIG. 2 is an exploded perspective view showing the virtual reality cellphone of FIG. 1 from the rear surface thereof;

FIG. 3 is a side view of the virtual reality cell phone of FIG. 1;

FIG. 4 is a sectional view illustrating the screen and distanceadjustment member of a virtual reality cell phone according to theembodiment of the present invention;

FIG. 5(a) is a partially enlarged sectional view illustrating the screenand distance adjustment member of the virtual reality cell phoneaccording to the embodiment of the present invention;

FIG. 5(b) is a partially enlarged sectional view illustrating the screenand distance adjustment member of the virtual reality cell phoneaccording to the embodiment of the present invention;

FIG. 6 is a partially enlarged side view illustrating the screen anddistance adjustment member of the virtual reality cell phone accordingto the embodiment of the present invention;

FIG. 7 is a side view illustrating a virtual reality cell phoneaccording to an embodiment of the present embodiment;

FIG. 8(a) is a perspective view illustrating a virtual reality cellphone according to another embodiment of the present invention;

FIG. 8(b) is a perspective view illustrating a virtual reality cellphone according to another embodiment of the present invention;

FIG. 9 is a perspective view of a virtual reality cell phone accordingto an embodiment of the present invention;

FIG. 10 is an exploded perspective view showing the virtual reality cellphone of FIG. 9 from the rear surface thereof;

FIG. 11 is a sectional view of the virtual reality cell phone of FIG. 9in a retracted state;

FIG. 12 is a sectional view of the virtual reality cell phone of FIG. 9in an extended state;

FIG. 13 is a perspective view of a virtual reality cell phone accordingto a third embodiment of the present invention;

FIG. 14 is an exploded perspective view showing the virtual reality cellphone of FIG. 13 from the rear surface thereof;

FIG. 15 is a side view of the virtual reality cell phone of FIG. 13;

FIG. 16 is a partially enlarged view illustrating the distanceadjustment member of a virtual reality cell phone according to anembodiment of the present invention;

FIG. 17 is a perspective view of a virtual reality cell phone accordingto a fourth embodiment of the present invention;

FIG. 18 is an exploded perspective view showing the virtual reality cellphone of FIG. 17 from the rear surface thereof;

FIG. 19 is a side view of a virtual reality cell phone according to anembodiment of the present invention; and

FIG. 20 is a side view illustrating a virtual reality cell phoneaccording to another embodiment of the present invention.

DETAILED DESCRIPTION

Although preferred embodiments of the present invention will bedescribed in detail below with reference to the accompanying drawings,the present invention is not limited or restricted by the embodiments.For reference, in the present description, the same reference symbolsrefer to substantially the same components. Under this rule, items shownin other drawings may be described through citation. A descriptiondetermined to be apparent to those skilled in the art or repeateddescription may be omitted.

A first embodiment of the present invention will be described withreference to FIGS. 1 to 8.

Referring to FIGS. 1 to 3, a virtual reality cell phone 100 according tothe present embodiment includes a main body 110, an ocular plate 120,and a screen and distance adjustment member 130.

The main body 110 includes a main display 112 disposed on the frontsurface thereof and a virtual reality display 114 disposed on the rearsurface thereof, and may perform the making of a basic call, the runningof an application, etc. through the manipulation of the front maindisplay 112 or another button, or the like. Furthermore, the backvirtual reality display 114 may provide a virtual reality function to auser in conjunction with the ocular plate 120. The virtual realitydisplay 114 may be operated through the manipulation of a user, themovement detection of the ocular plate 120, or the like.

The ocular plate 120 includes a pair of ocular lenses 122, and a usercan view an image, displayed on the virtual reality display 114, via theocular lenses 122. The ocular lenses 122 allow their focus to beadjusted through fine rotational manipulation, and also allow theirlateral interval to be adjusted in accordance with the distance betweenthe eyes. Additionally, a cushion corresponding to the shape of a face,a light blocking structure configured to additionally block light, orthe like may be added around the ocular lenses 122.

A flange configured to partially cover the side surfaces of the mainbody 110 may be further included outside the ocular plate 120. Theflange can protect internal parts, can prevent dust from entering, andenables the ocular plate 120 to solidly and firmly maintain its shape byblocking the outside of the ocular plate 120.

The screen and distance adjustment member 130 includes a plurality ofscreen boxes 140 configured to slide and be fixed in a longitudinaldirection while being laid over each other. The screen boxes 140 may beformed in rectangular shapes corresponding to the shape of the cellphone, in elliptical shapes, or in shapes each having an 8-shapedappearance conforming to the shape of the eyes.

In the screen and distance adjustment member 130, the screen boxes 140slide while undergoing friction, like a metal antenna, and thus they maybe stopped at desired locations and may maintain a variable distance.Furthermore, the screen boxes 140 can block four sides from the outside,and, thus, can effectively block external light.

In the present embodiment, one of the screen boxes 140 that are fastenedto the main body 110 is mounted on or in the rear surface, sidesurfaces, or inside of the main body 110. The location and structure atand in which the screen box 140 is mounted may vary in various mannersso that an overall thickness can be reduced in a retracted state.

FIG. 4 is a sectional view illustrating the screen and distanceadjustment member of the virtual reality cell phone according to theembodiment of the present invention.

Referring to FIG. 4, the screen boxes 140 constituting the screen anddistance adjustment member 130 may be each formed in a double-wallstructure. Each of the screen boxes 140 having a double-wall structureincludes an inner wall 142 and an outer wall 144, and the inner wall 142and the outer wall 144 may maintain a distance over an overall orpartial area. The screen boxes 140 each have a double-wall structure,and thus have a considerably lower weight for the same thickness thanscreen boxes each having a single-wall structure, and also the screenboxes 140 can form a firm structure.

FIG. 5 is a partially enlarged sectional view illustrating the screenand distance adjustment member of the virtual reality cell phoneaccording to the embodiment of the present invention.

Referring to FIG. 5(a), each of the screen boxes 140 may further includean elastic protrusion 147 protruding from the inner wall of the screenbox 140 in order to maintain a retracted state or extended state. In theextended state in which the screen boxes 140 have been extended, theelastic protrusion 147 supports an end of another screen box 140,thereby fastening the screen boxes 140 in order to prevent the screenboxes 140 from being laid over each other under force equal to or lowerthan predetermined force.

Furthermore, referring to FIG. 5(b), in the retracted state in which thescreen boxes 140 have been laid over each other, the elastic protrusion147 is stuck in a protrusion reception hole 149 formed in another screenbox 140, thereby fastening the screen boxes 140 in order to prevent thescreen boxes 140 from sliding into each other also under force equal toor lower than predetermined force.

Although the elastic protrusion 147 is formed in a structure in whichthe elastic protrusion 147 protrudes from the inner wall 142 of thescreen box 140 in the present embodiment, the elastic protrusion 147 maybe formed in a structure in which the elastic protrusion 147 protrudesfrom the outer wall or both from the inner wall and from the outer wall.The elastic protrusions 147 may be designed to be spaced apart from eachother in a direction perpendicular to extension and retractiondirections so as not to interfere with mutual operation. Furthermore,the elastic protrusions 147 may be elastically supported by their ownelasticity, as in the case of leaf springs, rather than being supportedby springs.

FIG. 6 is a partially enlarged side view illustrating the screen anddistance adjustment member of the virtual reality cell phone accordingto the embodiment of the present invention.

Referring to FIG. 6, the screen boxes 140 of the screen and distanceadjustment member 130 may be each formed in a double-wall structure, asillustrated in FIG. 4. When the screen boxes 140 of the screen anddistance adjustment member 130 are each formed in a double-wallstructure, a reduction in weight can not only be implemented, but othereffects can be also achieved. For example, when vents are formed in thescreen and distance adjustment member 130, each first vent 146 and acorresponding second vent 148 are formed not to overlap each other,thereby preventing light from entering from the outside.

More specifically, in each of the screen boxes 140 having a double-wallstructure, a first vent 146 is formed in an inner wall 142 and a secondvent 148 is formed in an outer wall 144 so that the first vent 146 andthe second vent 148 do not overlap each other, i.e., in a non-overlapmanner, as shown the drawing, thereby preventing light from enteringfrom the outside.

Referring back to FIGS. 2 and 3, the screen and distance adjustmentmember 130 is interposed between the main body 110 and the ocular plate120. While the ocular plate 120 remains in an extended state, externallight can be prevented from entering.

In the present embodiment, the sizes of the screen boxes 140 decreasegradually. The sizes may increase and then decrease in a front-backdirection. Conversely, the sizes of the screen boxes may increasegradually. Alternatively, the sizes of the screen boxes may increase andthen decrease. The opposite case is also possible.

Furthermore, although the screen boxes 140 preferably block externallight on four sides in order to increase an immersion level, they may beallowed to partially block a space between the main body 110 and theocular plate 120 as long as the immersion level is not seriouslydegraded even when the space is partially opened.

FIG. 7 is a side view illustrating a virtual reality cell phoneaccording to the present embodiment.

Referring to FIG. 7, the virtual reality cell phone may include a mainbody 110, an ocular plate 120, and a screen and distance adjustmentmember 130 like the previous embodiment, and may further include a rearcover 150.

The rear cover 150 may be used for the purpose of protecting the ocularplate 120. While a user is wearing the virtual reality cell phone, therear cover 150 may be used in the state of drooping from the bottomsurface of the main body 110 or ocular plate 120.

When the rear cover 150 is formed on the main body 110, the ocular plate120 can not only be protected, but a smell generation unit configured togenerate a specific smell in connection with the content of virtualreality or a wind generation unit 170 configured to generate a wind inconnection with the content of virtual reality may be also formedadditionally.

Furthermore, in order to implement a virtual reality function in a morerealistic fashion, fastening members 160 configured to fasten the cellphone in its extended state to the face of a user may be furtherincluded. The fastening members 160 may be provided in the form of theearloops of a common mask. The fastening members 160 may be normallyprepared on both sides of the ocular plate 120, and may be spreadbackward and fitted around the ears of a user for the convenience of theuser. Alternatively, it will be apparent that the fastening members 160may be formed on the main body 110.

The fastening members 160 may be provided in the form of the temples ofglasses, or may be provided in the form of an elastic band that isfastened to the head of a user.

Referring to FIG. 8, a virtual reality cell phone according to thepresent embodiment includes a main body 110, an ocular plate 120, and ascreen and distance adjustment member 131. For detailed descriptions ofthese components, reference may be made to the description of theprevious embodiment.

In contrast, in the present embodiment, the screen and distanceadjustment member 131 may accommodate the side surfaces of the main body110, may be extended backward from the side surfaces of the main body110 and space the ocular plate 120 apart from the main body 110 by apredetermined distance, and may prevent light from entering between themain body 110 and the ocular plate 120.

In this case, screen boxes 140 constituting the screen and distanceadjustment member 131 may be each formed in a single-wall or double-wallstructure, and may gradually increase in size and be connected to eachother from the main body 110.

The ocular plate 120 is mounted at the rear end of the screen anddistance adjustment member 131, in which case a substantially blockedspace may be also formed between the main body 110 and the ocular plate120 through the extension of the screen boxes 140.

A second embodiment of the present invention will be described withreference to FIGS. 9 to 12.

FIG. 9 is a perspective view of a virtual reality cell phone accordingto the second embodiment of the present invention, FIG. 10 is anexploded perspective view showing the virtual reality cell phone of FIG.9 from the rear surface thereof, FIG. 11 is a sectional view of thevirtual reality cell phone of FIG. 9 in a retracted state, and FIG. 12is a sectional view of the virtual reality cell phone of FIG. 9 in anextended state.

Referring to FIGS. 9 to 12, the virtual reality cell phone 100 accordingto the second embodiment of the present invention includes a main body110, a main frame 115, an ocular plate 120, and a screen and distanceadjustment member 130.

The main body 110 includes a main display 112 disposed on the frontsurface thereof, and may perform the making of a basic call, the runningof an application, etc. through the manipulation of the main display 112or another button, or the like.

The main body 110 may be rotatably mounted within the main frame 115.According to the rotation of the main body 110, the display 112 may befastened in the state of being oriented forward or in the state of beingoriented rearward.

The orientation of the display 112 may be detected through therotational state of the main body 110. A virtual reality function may beautomatically operated through the manipulation of a user, theorientation of the main body 110, the detection of the movement of theocular plate 120, or the like.

The ocular plate 120 includes a pair of ocular lenses 122. A user mayview an image, displayed on the inverted display 112, via the ocularlenses 122.

The screen and distance adjustment member 130 is mounted on the rearsurface of the main frame 115, and may include a plurality of screenboxes 140 configured to slide and be fixed in a longitudinal directionwhile being laid over each other. The screen boxes 140 may be formed inrectangular shapes corresponding to the shape of the cell phone, inelliptical shapes, or in shapes each having an 8-shaped appearanceconforming to the shape of the eyes.

A third embodiment of the present invention will be described withreference to FIGS. 13 to 16.

FIG. 13 is a perspective view of a virtual reality cell phone accordingto the third embodiment of the present invention, FIG. 14 is an explodedperspective view showing the virtual reality cell phone of FIG. 13 fromthe rear surface thereof, and FIG. 15 is a side view of the virtualreality cell phone of FIG. 13.

Referring to FIGS. 13 to 15, the virtual reality cell phone 200according to the present embodiment includes a main body 210, a mainframe 215, an ocular plate 220, and a screen and distance adjustmentmember 230.

The main body 210 includes a main display 212 disposed on the frontsurface thereof, and may perform the making of a basic call, the runningof an application, etc. through the manipulation of the main display 212or another button, or the like.

The main body 210 includes a main display 212 disposed on the frontsurface thereof, and may be rotatably mounted within the main frame 215.The display 212 may be fastened in the state of being oriented forwardor in the state of being oriented rearward.

The orientation of the display 212 may be detected through therotational state of the main body 210. A virtual reality function may beautomatically operated through the manipulation of a user, theorientation of the main body 210, the detection of the movement of theocular plate 220, or the like.

The ocular plate 220 includes a pair of ocular lenses 222. A user mayview an image, displayed on the inverted display 212, via the ocularlenses 222.

The screen and distance adjustment member 230 includes a distanceadjustment member 231, and a light blocking screen 240. The distanceadjustment member 231 includes first links 232 and second links 234configured such that each of the first links 232 and a corresponding oneof the second links 234 are connected to each other at their inner ends.The outer ends of the first links 232 are rotatably connected to themain frame 215, and the outer ends of the second links 234 are rotatablyconnected to the ocular plate 220.

Four combinations, each including a first link 232 and a second link234, connect the ocular plate 220 to the four corners of the main frame215. The first links 232 and the second links 234 move the ocular plate220 between an extended state and a retracted state while being spreadin rectilinear shapes or bent in V shapes.

FIG. 16 is a partially enlarged view illustrating the distanceadjustment member of a virtual reality cell phone according to thepresent embodiment.

Referring to FIG. 16, a first link 232 may be provided to be adjustedand fixed in length. For this purpose, the first link 232 includes atleast two rods 236 and 237 configured such that the overlapping lengththereof can be adjusted. An elongated hole formed in a longitudinaldirection is formed in at least one of the rods 236 and 237. A fineadjustment screw 238 is mounted in the elongated hole, and thus theoverlapping length of the rods 236 and 237 can be adjusted and fixed.

Additionally, a plurality of stop protrusions may be formed on theelongated hole at predetermined intervals, and thus the overlappinglength of the rods can be adjusted through movement between the stopprotrusions.

Fine distance adjustment is enabled by adjusting the overlappingdistance when necessary, as described above. The angle of the oculardisplay and the misalignment of the display with a vertical axis can bealso adjusted by independently adjusting the four link combinations.

Referring back to FIGS. 13 and 14, the light blocking screen 240 isinterposed between the main frame 215 and the ocular plate 220, and mayprevent external light from entering while the ocular plate 220 is in anextended state.

In the present embodiment, the light blocking screen 240 is formed in abellows shape. Both ends of the light blocking screen 240 are fastenedto the main frame 215 and the ocular plate 220, respectively, and thus asubstantially complete darkroom is formed. However, the light blockingscreen 240 may be made of a material having excellent elasticity, ratherthan being formed in a bellows form. The light blocking screen 240 maybe designed such that it is normally fastened to any one side and isthen fastened to the other side in an extended state.

Furthermore, although the screen boxes 240 preferably block externallight on four sides in order to increase an immersion level, they may beallowed to partially block a space between the main frame 215 and theocular plate 220 as long as the immersion level is not seriouslydegraded even when the space is partially opened.

A fourth embodiment of the present invention will be described withreference to FIGS. 17 to 20.

FIG. 17 is a perspective view of a virtual reality cell phone accordingto the fourth embodiment of the present invention, and FIG. 18 is anexploded perspective view showing the virtual reality cell phone of FIG.17 from the rear surface thereof.

Referring to FIGS. 17 and 18, the virtual reality cell phone 100according to the present embodiment includes a main body 110, an ocularplate 120, a distance adjustment member 130, and a light blocking screen140.

The main body 110 includes a main display 112 disposed on the frontsurface thereof and a virtual reality display 114 disposed on the rearsurface thereof, and may perform the making of a basic call, the runningof an application, etc. through the manipulation of the front maindisplay 112 or another button, or the like. Furthermore, the backvirtual reality display 114 may provide a virtual reality function to auser in conjunction with the ocular plate 120. The virtual realitydisplay 114 may be operated through the manipulation of a user, themovement detection of the ocular plate 120, or the like.

The ocular plate 120 includes a pair of ocular lenses 122, and a usercan view an image, displayed on the virtual reality display 114, via theocular lenses 122. The ocular lenses 122 allow their focus to beadjusted through fine rotational manipulation, and also allow theirlateral interval to be adjusted in accordance with the distance betweenthe eyes. Additionally, a cushion corresponding to the shape of a face,a light blocking structure configured to additionally block light, orthe like may be added around the ocular lenses 122.

A flange configured to partially cover the side surfaces of the mainbody 110 may be further included outside the ocular plate 120. Theflange can protect internal parts, can prevent dust from entering, andenables the ocular plate 120 to solidly and firmly maintain its shape byblocking the outside.

The distance adjustment member 130 includes first links 132 and secondlinks 134 configured such that each of the first links 132 and acorresponding one of the second links 134 are connected to each other attheir inner ends. The outer ends of the first links 132 are rotatablyconnected to the main body 110, and the outer ends of the second links134 are rotatably connected to the ocular plate 120.

Four combinations, each including the first link 132 and the second link134, connect the ocular plate 120 to the four corners of the main body110. The first links 132 and the second links 134 move the ocular plate120 between an extended state and a retracted state while being spreadin rectilinear shapes or bent in V shapes.

In the present embodiment, the light blocking screen 140 is formed in abellows shape. Both ends of the light blocking screen 140 are fastenedto the main body 110 and the ocular plate 120, respectively, and thus asubstantially complete darkroom is formed. However, the light blockingscreen 140 may be made of a material having excellent elasticity, ratherthan being formed in a bellows form. The light blocking screen 140 maybe designed such that it is normally fastened to any one side and isthen fastened to the other side in an extended state.

FIG. 19 is a side view of a virtual reality cell phone according to afourth embodiment of the present invention.

Referring to FIG. 19, the virtual reality cell phone includes a mainbody 110, an ocular plate 120, a distance adjustment member 130, and alight blocking screen 140 like the previous embodiment, and may furtherinclude a rear cover 150.

The rear cover 150 may be used for the purpose of protecting the ocularplate 120. While a user is wearing the virtual reality cell phone, therear cover 150 may be used in the state of drooping from the bottomsurface of the main body 110 or ocular plate 120.

When the rear cover 150 is formed on the main body 110, the ocular plate120 can not only be protected, but a smell generation unit configured togenerate a specific smell in connection with the content of virtualreality or a wind generation unit 170 configured to generate a wind inconnection with the content of virtual reality may be also formedadditionally.

Furthermore, in order to implement a virtual reality function in a morerealistic fashion, fastening members 160 configured to fasten the cellphone in its extended state to the face of a user may be furtherincluded. The fastening members 160 may be provided in the form of theearloops of a common mask. The fastening members 160 may be normallyprepared on both sides of the ocular plate 120, and may be spreadbackward and fitted around the ears of a user for the convenience of theuser.

The fastening members 160 may be provided in the form of the temples ofglasses, or may be provided in the form of an elastic band that isfastened to the head of a user.

FIG. 20 is a side view illustrating a virtual reality cell phoneaccording to still another embodiment of the present invention.

Referring to FIG. 20, the virtual reality cell phone according to thepresent embodiment includes a main body 110, and an ocular plate 120.For detailed descriptions of these components, reference may be made tothe description of the previous embodiment.

In contrast, the present embodiment includes a combined screen anddistance adjustment member 180. The combined screen and distanceadjustment member 180 may replace the distance adjustment member andlight blocking screen of the previous embodiment. More specifically, thecombined screen and distance adjustment member 180 includes a pluralityof screen boxes configured to slide and be fastened in a longitudinaldirection while being laid over each other. The screen boxes may beformed in rectangular shapes corresponding to the shape of the cellphone, in elliptical shapes, or in shapes each having an 8-shapedappearance conforming to the shape of the eyes.

While the foregoing description has been given with reference to thepreferred embodiments of the present invention as described above, itwill be understood by those skilled in the art that the presentinvention may be modified and altered in various manners withoutdeparting from the spirit and scope of the present invention set forthin the attached claims.

The invention claimed is:
 1. A virtual reality cell phone comprising: amain body including a main display on a front surface thereof and avirtual reality display on a rear surface thereof; an ocular plateconfigured to maintain a variable distance from the rear surface of themain body; and a screen and distance adjustment member interposedbetween the main body and the ocular plate, and configured to move theocular plate between a retracted state in which the ocular plate comesinto close contact with the main body and an extended state in which theocular plate maintains a predetermined distance from the main body;wherein the screen and distance adjustment member includes a pluralityof screen boxes configured to slide backward and be fixed while beinglaid over each other, and wherein the screen boxes are each formed in adouble-wall structure including an inner wall and an outer wall spacedapart from the inner wall.
 2. The virtual reality cell phone of claim 1,wherein each of the screen boxes includes an elastic protrusionprotruding from its inner wall or outer wall in order to secure theretracted state or the extended state, and a protrusion reception holeis formed in an inner wall or outer wall of another corresponding one ofthe screen boxes in order to correspond to the elastic protrusion. 3.The virtual reality cell phone of claim 1, wherein the screen anddistance adjustment member accommodates all or part of side surfaces ofthe main body, and slides backward from the side surfaces of the mainbody.
 4. The virtual reality cell phone of claim 1, wherein the screenboxes each includes a first vent formed in the inner wall and a secondvent formed in the outer wall, and the first vent and the second ventare formed in a non-overlap manner and prevent light from entering froman outside.
 5. The virtual reality cell phone of claim 1, wherein theocular plate includes a pair of ocular lenses configured such that afocus thereof and an interval therebetween can be adjusted.
 6. Thevirtual reality cell phone of claim 1, further comprising fasteningmembers configured to fasten the virtual reality cell phone in theextended state to a face of a user via the ocular plate.
 7. The virtualreality cell phone of claim 6, wherein the fastening members includeearloops mounted to be spread backward from left and right ends of therear surface of the main body.
 8. The virtual reality cell phone ofclaim 1, further comprising a rear cover configured to selectively openand close a rear surface of the ocular plate in the retracted state ofthe ocular plate.
 9. The virtual reality cell phone of claim 8, whereina smell generation unit or wind generation unit is mounted on the rearcover.
 10. A virtual reality cell phone comprising: a main bodyincluding a display on a front surface thereof; a main frame configuredto accommodate the main body in an invertible manner; an ocular plateconfigured to maintain a variable distance from a rear surface of themain frame; and a screen and distance adjustment member interposedbetween the main frame and the ocular plate, and configured to move theocular plate between in a retracted state in which the ocular platecomes into close contact with the main frame and an extended state inwhich the ocular plate maintains a predetermined distance from the mainframe; wherein the screen and distance adjustment member includes aplurality of screen boxes configured to slide backward and be fixedwhile being laid over each other; and wherein when the ocular plate isin the extended state, a virtual reality function can be implemented byorienting the display of the inverted main body backward, and whereinthe screen boxes are each formed in a double-wall structure including aninner wall and an outer wall spaced apart from the inner wall.
 11. Thevirtual reality cell phone of claim 10, wherein the screen and distanceadjustment member accommodates all or part of side surfaces of the mainbody, and slides backward from the side surfaces of the main body. 12.The virtual reality cell phone of claim 10, wherein the screen anddistance adjustment member includes: a distance adjustment memberinterposed between the main frame and the ocular plate and configured tomove the ocular plate between the retracted state and the extendedstate, and a light blocking screen interposed between the main frame andthe ocular plate and configured to prevent external light from enteringin the extended state of the ocular plate.
 13. A virtual reality cellphone comprising: a main body including a display on a front surfacethereof; a main frame configured to accommodate the main body in aninvertible manner; an ocular plate configured to maintain a variabledistance from a rear surface of the main frame; and a screen anddistance adjustment member interposed between the main frame and theocular plate, and configured to move the ocular plate between in aretracted state in which the ocular plate comes into close contact withthe main frame and an extended state in which the ocular plate maintainsa predetermined distance from the main frame, wherein the screen anddistance adjustment member includes a light blocking screen formed in abellows shape, wherein when the ocular plate is in the extended state, avirtual reality function can be implemented by orienting the display ofthe inverted main body backward, and wherein the screen and distanceadjustment member further includes a distance adjustment member, thedistance adjustment member includes first links and second linksconfigured such that each of the first links and each of the secondlinks are rotatably connected to each other at their first ends, secondends of the first links are rotatably connected to the main body, andsecond ends of the second links are rotatably connected to the ocularplate.
 14. A virtual reality cell phone comprising: a main bodyincluding a main display on a front surface thereof and a virtualreality display on a rear surface thereof; an ocular plate configured tomaintain a variable distance from the rear surface of the main body; adistance adjustment member interposed between the main body and theocular plate, and configured to move the ocular plate between aretracted state in which the ocular plate comes into close contact withthe main body and an extended state in which the ocular plate maintainsa predetermined distance from the main body; and a light blocking screeninterposed between the main body and the ocular plate, and configured toprevent external light from entering in the extended state of the ocularplate, wherein the distance adjustment member includes first links andsecond links configured such that each of the first links and each ofthe second links are rotatably connected to each other at their firstends, second ends of the first links are rotatably connected to the mainbody, and second ends of the second links are rotatably connected to theocular plate.
 15. The virtual reality cell phone of claim 14, whereinthe light blocking screen is provided between the main body and theocular plate in a bellows shape.
 16. The virtual reality cell phone ofclaim 14, wherein each of the first links includes at least two rodsconfigured such that an overlapping length thereof can be adjusted sothat a length thereof can be adjusted and fixed.
 17. The virtual realitycell phone of claim 14, further comprising a rear cover configured toselectively open and close a rear surface of the ocular plate in theretracted state of the ocular plate.
 18. The virtual reality cell phoneof claim 17, wherein a smell generation unit or wind generation unit ismounted on the rear cover.